{
  "abstract": "A position monitoring system is configured for use on control valves and other flow controls. These configurations include a motion sensitive unit, for example, a flexible tube with one end that can move in conjunction with a valve stem on the flow control. The flexible tube may hold synthetic oil. Another end of the tube may couple with a pressure senor. In use, this senor may generate a signal that corresponds with head pressure of the synthetic oil in the tube. Operating hardware on the flow control, for example, processing hardware that is part of a valve positioner or controller, may process the signal from the pressure sensor to identify a operating condition of a valve, for example, a position for a closure member of the valve.",
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  "published_at": "2026-09-15T19:02:48.994045Z",
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  "source_date": "2026-04-21",
  "source_id": "US-12607278-B2",
  "source_name": "the United States Patent and Trademark Office",
  "source_url": "https://patents.google.com/patent/US12607278B2",
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  "title": "Using pressure to monitor position of components on a control valve",
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